Can your EV power your house?

The size of the prize

A dedicated home battery stores 6–13.5 kWh per unit. A typical EV carries 60–130 kWh, a week of essential household power sitting in your driveway. Bi-directional charging (“V2X”, vehicle-to-everything) lets that energy flow back out of the car.

The three flavours

• V2H, vehicle-to-home. The headline act: during an outage your EV feeds the house, stretching backup from hours into days. Add it to a home battery and a two-day windstorm outage becomes a footnote.
• V2G, vehicle-to-grid. Where utilities support it, your car can sell energy back at peak times. Early days in BC, but the hardware you install now is the hardware that will do it.
• V2L, vehicle-to-load. Plug tools, a campsite, or a fridge straight into the vehicle’s outlets. Several EVs offer this today with zero home wiring.

Two ways we build it in Victoria

Tesla Powershare

With a compatible Tesla (Cybertruck leads the way) plus Powerwall and a Wall Connector, Powershare lets the truck backfeed the house through the Tesla ecosystem, automatically, during an outage. One brand, one app, seamless.

Sigenergy SigenStor

The SigenStor stack accepts a DC EV charging module that slots directly into the battery tower: solar, storage and bi-directional DC charging in one unit. (The module occupies one of the six slots, so a V2X stack carries up to five battery packs.) It’s also eligible for the BC Hydro battery rebate.

What you actually need

• A bi-directional-capable EV, the list grows yearly: Tesla Powershare models, Ford F-150 Lightning, Nissan Leaf, several Hyundai/Kia models, and more arriving.
• Two-way hardware, Powershare via Powerwall, or SigenStor’s DC module.
• A licensed integration, the gateway and switchgear that safely islands your home from the grid during an outage. This is electrician territory; it’s the part we do every week.

The honest caveats

Compatibility is vehicle-specific and moving fast: what your exact car supports today may differ from what it supports after a software update. Frequent deep cycling also touches your EV battery’s warranty terms, worth reading. Our approach: build the solar + storage foundation now, wire it V2X-ready, and switch on bi-directional the day your vehicle supports it. You’re never boxed in.